I've got a general query as I'm in the process of collating information...

Does anyone else have issues with USB3 devices on USB3 ports in linux? By 'issues' I mean taking ages to be discovered, randomly disconnecting and reconnecting and the worst of all... data corruption on transfer and kernel panics.

I've seen this now on kernel 2.6.something-or-other (whatever the latest CentOS kernel is, I forget), kernel 3.2.0-xx (Ubuntu 12.04 LTS) and 3.5.0-xx (Ubuntu 12.10). I've also given it a test with Archbang, kernel 3.6.8... all exhibit the same issues.

I ask because at first I thought the issues I was having were just a dodgy USB3 HDD or cable, but a second drive (different manufacturer) does it too... and a colleagues brand new office PC also exhibits the same issues with her USB3 HDD.

It would seem that the USB3 "standard" is not being terribly well implemented.
USB3 drives should be backwardly compatible, but seldom are.
USB2 devices are unreliable in USB3 ports.
We sell MFDs with USB2 ports, and they often fail with USB3 devices.

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